Red-and-white Spinetail
Certhiaxis mustelinus
Strikingly bicolored spinetail, bright rusty above and white below. Note the dusky lores. Found in riverine marshes. The song is a loud rattle: “tch-t-t-t-t-t-t-t-t-t-t-t-t-t.”. The similar Yellow-chinned Spinetail has a pale eyebrow and a yellow chin and lacks the dusky lores; its song is similar but drier.
识别特征
The red-and-white spinetail is 14 to 15 cm (5.5 to 5.9 in) long and weighs 14 to 16 g (0.49 to 0.56 oz). The sexes have the same plumage. Adults have black lores and a dusky brown line through the eye on an otherwise reddish brown face. Their crown and back are also reddish brown, with the back being slightly lighter. Their rump is a paler rufescent brown. Their wings are mostly bright rufous with dark fuscous tips on the flight feathers. Their tail is mostly rufous with duller brown inner webs on the central pair of feathers; the feathers have few barbs on their ends giving a spiny appearance. Their chin and throat are white. Their underparts are white with a pale buff wash on the belly, flanks, and undertail coverts. Their iris is brown, their maxilla gray to blackish, their mandible dark gray, and their legs and feet light gray. Juveniles have less uniform rufous upperparts than adults, with a dusky crown and some faint mottling on the breast.
分类信息
The red-and-white spinetail shares genus Certhiaxis with the yellow-chinned spinetail (C. cinnamomeus). It is monotypic.
- 学名
- Certhiaxis mustelinus
- 命名信息
- (Sclater, PL, 1874)
- 目
- Passeriformes
- 科
- Furnariidae
- 属
- Certhiaxis
分布与栖息地
The red-and-white spinetail is found along river corridors in the central Amazon Basin, mostly in Brazil but also in extreme southeastern Colombia and in northeastern Peru. The major rivers are Peru's Ucayali and Brazil's Madeira, Juruá, Purús, and the Amazon itself to the Atlantic Ocean. It primarily inhabits freshwater marshes, especially those around old river islands where there is a mix of bushes, grasses, and emergent vegetation. In its small Colombian range it occurs very locally in seasonally flooded grasslands. In elevation it ranges from near sea level to 150 m (500 ft).
- 迁徙
- Resident species
行为
Migration pattern: Resident species.
保护状况
Population trend: stable.
- 种群趋势
- stable
照片
分布
鸟叫声
其他鸟类
Red-throated Loon
Gavia stellata
The smallest loon, with a slender neck and bill. Often holds the thin bill at an upward angle. In breeding plumage, note smooth gray head, brick-red throat, and dark back. In winter, dark cap and hind neck contrast with white face and throat. In flight, often lowers and raises head more than other loons; also note small feet. Juveniles can look quite dark with a smudgy gray neck and limited white throat. Often confused with other loons, especially Pacific and Arctic; note overall head and bill shape and less sharp contrast to the head pattern. Breeds on ponds in the Arctic tundra. Winters primarily on saltwater, but can use large lakes and reservoirs in migration. Sometimes gathers in loose flocks where food is plentiful.
Rufous-capped Antshrike
Thamnophilus ruficapillus
Small antshrike found in the understory of dense forests and second growth. Has a rusty cap and back and is buff-brown on the face and underparts. Males are barred on the breast and undertail, which is absent on females. The song is a loud and descending series of 12–13 “tjew” notes, accelerating towards the end.
Banggai Jungle Flycatcher
Cyornis pelingensis
A drab flycatcher with brown upperparts, a paler gray underside, and rufous coloration in the tail, rump, and wing. Shows a pale mark between the bill and the eye. Juvenile shows a mottled head and buff wing markings. Found within shady forest understory in lowlands and hills. Confined to Peleng Island. Longer-billed and longer-tailed than female Snowy-browed Flycatcher, and lacks the warm buffy breast. Song is a simple, crisp warble of around four rising and falling notes. Also gives a thrush-like thin, high-pitched “tseeyup” note.
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